Hi, Anonymous, and welcome! Well, you could have fibro. We have plenty of weird things happening to us. I get the tingling, numbness, hot or cold spots, and even spots that feel wet. I sometimes feel like water is running down my legs or that a bug is on me. This is all caused from nerves. People with fibro have pain in all four quandrants of their body and to have cognative memory problems....fibro fog. So it sounds like you have quite a few symptoms.
If your MRI is clean, I don't think you have MS. That is one of the diagnostic tools for MS...MRI to see if there are lesions on the brain. Since yours was clean, I think you can rule out that illness. There are other illnesses that have many of the same symptoms as fibro and those need to be ruled out, too. That's what the doctor has to do since there isn't a good test for fibro. If all the tests come back normal, usually a diagnosis of fibro is given. I hope you see a good board certified rheumatologist and get checked out. Be sure they treat fibro patients since there still are some doctors ou there that don't believe this is a true illness. NO, you are not crazy, either. It's not all in your head.
Be sure to read Fibro 101...the first thread on the forum. There are links to good info about fibro and you will learn a lot there. Good starting links are called Symptoms, What Else Could It Be, and A Thorough Explanation of Fibromyalgia. You just might see yourself there. Do read all of Fibro 101. It's all good information.
I hope you start getting some answers. Just not knowing what is going on can cause anxiety and then anxiety causes more "symptoms". Just take a deep breath and know you are not alone. We are here to help you.
I'm looking forward to getting to know you better. Don't hesitate to ask questions because we are here to help you. Hope to hear more from you soon.
Sherrine